#33 Tulsi Tanti

Wind entrepreneur has been facing headwinds.

Wind entrepreneur has been facing headwinds. Family cashed in 8% of their stake in listed Suzlon Energy, the world's third largest wind turbine maker, this year. Lent the $300 million proceeds back to the company to help it complete its acquisition of German wind power firm Repower and reduce some of its $2.8 billion debt load. Company is also mulling stake sale of Hansen Transmission International, London-listed maker of gear boxes in which it holds 61%. Suzlon's stock, which had plunged last year when some of its blades supplied to American customers cracked, recovered since March low. But quality issues persist: Essel Mining, iron ore miner owned by Kumar Birla (No. 9), threatened legal action over the poor performance of a windmill Suzlon had supplied. The matter was settled out of court.